2007 GM/Chev (HD) V8, 6.0L, Gasoline, Truck Delivery, ECMs, Fits to: Workhorse Custom Chassis W42, (Used) 2006 GM V8 6.0L, ECM- Part Number: 12613264, Serial Number: 86YPUHR171970647, Serv Number:12602801, HDW Number: 12589161, Engine: P-33837, Family Number: 7GMXH060583, Horsepower 300, Displacement: 6.0, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY, ELKTON, MD 21921, Serial# 86YPUHR171970647, Casting# Other, Truck Year 2007 5b4kpd2ux73428863